German suppliers are having to wait longer and longer for car makers to pay invoices, the Handeslblatt news paper reported, citing a new study from FAW, the vehicle industry research unit at Bamberg University. A large supplier, who did not want to be named, told Handelsblatt that a look at the 'liabilities' section of any car maker's balance sheet would confirm the study's findings. These, he said, are tending to show ever-increasing payments outstanding to suppliers.